T28.911D (Corrosions of right ear drum, subsequent encounter) compared with T28.912D (Corrosions of left ear drum, subsequent encounter), from the official CMS tabular data. T28.911D and T28.912D code the same condition on opposite sides. MedCoder-derived
Same condition; these differ only in which side is documented.
These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.
Source: ICD-10-CM tabular list (laterality variant derived from the code title)
Same condition, opposite side. T28.911D and T28.912D name the same condition on opposite sides of the body.
Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.
| T28.911DCorrosions of right ear drum, subsequent encounter | T28.912DCorrosions of left ear drum, subsequent encounter | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Corrosions of right ear drum, subsequent encounter is a billable ICD-10-CM diagnosis code (T28.911D). | Corrosions of left ear drum, subsequent encounter is a billable ICD-10-CM diagnosis code (T28.912D). |
| 7th character | The appropriate 7th character is to be added to each code from category T28 | The appropriate 7th character is to be added to each code from category T28 |
| Use additional code | external cause code to identify the source and intent of the burn (X00-X19, X75-X77, X96-X98) external cause code to identify place (Y92) | external cause code to identify the source and intent of the burn (X00-X19, X75-X77, X96-X98) external cause code to identify place (Y92) |
| Code first | (T51-T65) to identify chemical and intent | (T51-T65) to identify chemical and intent |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources